
---- config_dict 操作 增删该查
--   包含模块
--   base realIpFrom_Mod deny_Msg [序号非数字]
--   uri_Mod header_Mod useragent_Mod cookie_Mod args_Mod post_Mod
--   network_Mod replace_Mod host_method_Mod rewrite_Mod app_Mod referer_Mod

local cjson_safe = require "cjson.safe"
local optl = require("optl")

local get_argsByName
if ngx.var.request_method == "POST" then
    get_argsByName = optl.get_postByName
elseif ngx.var.request_method == "GET" then
    get_argsByName = optl.get_argsByName
end

local _action = get_argsByName("action")
local _mod = get_argsByName("mod")
local _id = get_argsByName("id")
local _value = get_argsByName("value")
local _value_type = get_argsByName("value_type")

local config_dict = ngx.shared.config_dict
local config = cjson_safe.decode(config_dict:get("config")) or {}
local config_base = config.base or {}


local _code = "ok"
if _action == "get" then

    if _mod == "all_mod" then
        local tmp_config = {}
        for k,v in pairs(config) do
            tmp_config[k] = cjson_safe.encode(v)
        end
        tmp_config.code = _code
        optl.sayHtml_ext(tmp_config)

    elseif _mod == "" then-- 显示所有 keys 的 name
        local tmp_config = {}
        for k,v in pairs(config) do
            table.insert(tmp_config,k)
        end
        tmp_config.code = _code
        optl.sayHtml_ext(tmp_config)

    else
        local _tb = config[_mod]
        if _tb == nil then optl.sayHtml_ext({code="error",msg="mod is Non-existent"}) end
        if _id == "" then
            _tb.state = config_base[_mod]
            _tb.code = _code
            optl.sayHtml_ext(_tb)

        elseif _id == "count_id" then
            local cnt = 0
            for k,v in pairs(_tb) do
                cnt = cnt+1
            end
            optl.sayHtml_ext({code=_code,count_id=cnt})
        else
            --- realIpFrom_Mod 和 base 和 denyHost_Mod 特殊处理
            if _mod ~= "realIpFrom_Mod" and _mod ~= "base" and _mod ~= "denyMsg" then
                _id = tonumber(_id) or 1
            end
            optl.sayHtml_ext({code=_code,msg=_tb[_id]})
        end

    end

elseif _action == "set" then

    local _tb = config[_mod]
    if _tb == nil then optl.sayHtml_ext({code="error",msg="mod is Non-existent"}) end

    if _id == "" then -- id 参数不存在 （整体set）
        local tmp_value = cjson_safe.decode(_value)--将value参数的值 转换成table
        if type(tmp_value) == "table" then
            local _old_value = _tb
            config[_mod] = tmp_value
            local re = config_dict:replace("config",cjson_safe.encode(config))--将对应mod整体进行替换
            if re ~= true then
                _code = "error"
                optl.sayHtml_ext({code=_code,msg="replace error"})
            end
            config_dict:incr("config_version",1)
            optl.sayHtml_ext({code=_code,old_value=_old_value,new_value=tmp_value})
        else
            optl.sayHtml_ext({code="error",msg="value to json error"})
        end
    else
        if _value_type == "json" then
            _value = cjson_safe.decode(_value) ---- 将value参数的值 转换成json/table
            if type(_value) ~= "table" then
                optl.sayHtml_ext({code="error",msg="value to json error"})
            end
        end
        --- realIpFrom_Mod base denyMsg 特殊处理
        if _mod ~= "realIpFrom_Mod" and _mod ~= "base" and _mod ~= "denyMsg" then
            _id = tonumber(_id)
        end
        local _old_value = _tb[_id]
        --- 判断id是否存在
        if _old_value == nil then optl.sayHtml_ext({code="error",msg="id is nil"}) end

        config[_mod][_id] = _value
        local re = config_dict:replace("config",cjson_safe.encode(config))
        if re ~= true then
            _code = "error"
            optl.sayHtml_ext({code=_code,msg="replace error"})
        end
        config_dict:incr("config_version",1)
        optl.sayHtml_ext({code=_code,old_value=_old_value,new_value=_value})

    end

elseif _action == "add" then

    local _tb = config[_mod]
    if _tb == nil then
        optl.sayHtml_ext({code="error",msg="mod is Non-existent"})
    end

    if _value_type == "json" then
        _value = cjson_safe.decode(_value) ---- 将value参数的值 转换成json/table
        if type(_value) ~= "table" then
            optl.sayHtml_ext({code="error",msg="value to json error"})
        end
    end

    if _mod == "realIpFrom_Mod"  or _mod == "denyMsg" then
        if _tb[_id] == nil and _id ~= "" then
            config[_mod][_id] = _value
            local re = config_dict:replace("config",cjson_safe.encode(config))
            if re ~= true then
                _code = "error"
                optl.sayHtml_ext({code=_code,msg="replace error"})
            end
            config_dict:incr("config_version",1)
            optl.sayHtml_ext({code=_code,msg=_mod,value=_value})
        else
             optl.sayHtml_ext({code="error",msg="id is existent"})
        end

    elseif  _mod == "base" then
        optl.sayHtml_ext({code="error",msg="base does not support add"})
    else
        table.insert(config[_mod],_value)
        local re = config_dict:replace("config",cjson_safe.encode(config))
        if re ~= true then
            _code = "error"
            optl.sayHtml_ext({code=_code,msg="replace error"})
        end
        config_dict:incr("config_version",1)
        optl.sayHtml_ext({code=_code,msg=_mod,value=_value})
    end

elseif _action == "del" then

    -- 判断mod 是否存在
    local _tb = config[_mod]
    if _tb == nil then optl.sayHtml_ext({code="error",msg="mod is Non-existent"}) end

    if _mod == "realIpFrom_Mod" or _mod == "denyMsg" then
        if _tb[_id] == nil then
            optl.sayHtml_ext({code="error",msg="id is Non-existent"})
        else
            config[_mod][_id] = nil
            local re = config_dict:replace("config",cjson_safe.encode(config))
            if re ~= true then
                _code = "error"
                optl.sayHtml_ext({code=_code,msg="replace error"})
            end
            config_dict:incr("config_version",1)
            optl.sayHtml_ext({code=_code,mod=_mod,id=_id})
        end
    elseif _mod == "base" then
        optl.sayHtml_ext({code="error",msg="base does not support del"})
    else
        _id = tonumber(_id)
        if _id == nil then
            optl.sayHtml_ext({code="error",msg="_id is not number"})
        else
            local rr = table.remove(config[_mod],_id)
            if rr == nil then
                optl.sayHtml_ext({code="error",msg="id is Non-existent"})
            else
                local re = config_dict:replace("config",cjson_safe.encode(config))
                if re ~= true then
                    _code = "error"
                    optl.sayHtml_ext({code=_code,msg="replace error"})
                end
                config_dict:incr("config_version",1)
                optl.sayHtml_ext({code=_code,mod=_mod,id=_id})
            end
        end
    end

else
    optl.sayHtml_ext({code="error",msg="action error"})
end